In 1994 Leica released a US$9,000 special edition M6 celebrating 40 years of the Leica M camera. The camera features the same parallax-corrected 0.72x magnification finder of the M4-P, and is capable of displaying three pairs of 6 framelines depending which lens is mounted: Adjusted for inflation, this is a little over US$3,965 in 2020 money. On its release in 1984, the Leica M6 cost approximately US$1,695. Leica M6 Black Chrome Image credit: Tom Knier The Leica M6 requires batteries to operate its light meter however, its shutter, like every Leica which preceded it, is entirely mechanical and does not require power to function. The camera comes in two finishes: black or silver chrome over a nickel-plated zinc top plate and colour-matched brass bottom plate. The M6 is essentially a Leica M4-P with a built-in TTL light meter and also utilises many of the same materials and processes in its construction. The Leica M6 was the first Leica M 35mm film rangefinder to be produced exclusively in Germany since the Leica M4 range.